from tkinter import*
print('Введите начальную координату x:')
X=int(input("Введите X"))
print('Введите начальную координату y:')
Y=int(input("Введите Y"))
print('Введите начальную координату n:')
N=int(input("Размер"))
coords=[0, 0, 10, 0, 10, 10, 20, 10, 20, 20, 0, 20]

if N == 0 and x>=0 and x<=500 and y>=0 and y<=500:
    pass
else:
    if N < 0 and 20*N+X>=0 and 0*N+Y>=0 and 20*+X<=500 and 20*N+Y<=500:
        pass
    else:
        if N < 0 and 20*N+X>=0 and 20*N+Y>=0 and 0*+X<=500 and 0*N+Y<=500:
            pass
        else:
            print('Размер фигуры превышает максимальный размер поля')
            exit()
        
root=Tk()
root.title ('IT marathon')
root.geometry('500x500')

canvas=Canvas(bg='white', width=500, height=500)
canvas.pack(anchor=CENTER, expand=1)

canvas.create_polygon(coords[0] *N+X,  coords[1] *N+Y,
                     coords[2] *N+X,  coords[3] *N+Y,
                     coords[4] *N+X,  coords[5] *N+Y,
                     coords[6] *N+X,  coords[7] *N+Y,
                     coords[8] *N+X,  coords[9] *N+Y,
                     coords[10] *N+X,  coords[11] *N+Y)
root.mainloop()

